  <p>课程ID：{{id}}</p>
    <p>课程名称：{{title}}</p>
    <p>课程价格：{{price}}</p>
    <p>优惠券：<span style="color: red">{{coupon}}</span></p>
    <button class="add-btn" {{disabled}} data-id="{{id}}">{{btnText}}</button>
    <hr />